ruby-on-rails - (Rails 4.2) 如何从 View 触发脚手架生成？

Question

如何从 View 中触发脚手架生成？

例如，假设我有这样的方法:

def scaffold_generation
  system "rails g scaffold TodoList task author"
end

如何让“example_page.html.erb”上的按钮触发此方法以在服务器上执行命令？ (这里不用担心安全问题)

Answer 1

1:使用 Form Tag 创建表单

<%= form_tag('/create_scaffold') do -%>
  <div><%= submit_tag 'Create Scaffold' %></div>
<% end %>

2:编写路由以匹配传入请求。

 match '/create_scaffold', to: 'examples#scaffold_generation', via: :all

3:

class ExamplesController < ApplicationController

   def scaffold_generation
      system "rails g scaffold TodoList task author"
      system "rake db:migrate" #=> use this so that, it won't throw any errors.
      render :text => "Whoa !!! Done"
   end
end